Introduction to the carbonized wood site: The carbonized wood site in Changbai Mountain is about 1,000 years old. The remains are located on the southern slope of Changbai Mountain at an altitude of about 1,400 meters above sea level. The exposed part of the carbonized wood distribution area is about 3-4 meters high and about 20 meters long. The carbonized wood is covered with a soil layer of about 1 meter, and various trees grow there.